... America etc. 3.Standard : GB , API,JIS CommodityOil casing pipe/tubePlace of originTianjin , China(Mainland)StandardAPI,GBMaterialJ55,K55, ... 25 after orderQualityHigh qualityProductivity1000MT/ WeekMOQ10MTApplication Generally used in oil casing, conveying gas and oil,chemical industry,etc NoteWe ... are Tianjin Hong-Peng High-Pressure Alloy Pipe Sales Co.,ltd,which is a leading expoter and manufacturer ...